TQC9312_15 Datasheet, PDF (1/9 Pages) TriQuint Semiconductor – 3.3 – 3.8 GHz W Digital Variable Gain Amplifier

TQC9312
3.3 – 3.8 GHz ½ W Digital Variable Gain Amplifier
Applications
• 3G / 4G Wireless Infrastructure
• Repeaters
• Small cells
28-pin 6x6 mm leadless SMT package
Product Features
• 3.3 – 3.8 GHz Frequency Range
• 40 dB Gain (min attenuation state) at 3.5 GHz
• 31.5 dB Gain Range in 0.5 dB Steps
• +44.5 dBm Output IP3
• +27.8 dBm Output P1dB
• Fully Internally Matched Module
• Integrated Blocking Capacitors, Bias Inductors
• 3-wire SPI^TM Control Programming
General Description
The TQC9312 is a digital variable gain amplifier (DVGA)
featuring high linearity over the entire gain control range.
This amplifier module integrates two gain blocks, a
digital-step attenuator (DSA), and a high linearity ½ W
amplifier. The module has the added feature of
integrating all matching components, bias chokes and
blocking capacitors. The internal 6-bit DSA provides a
31.5 dB gain control range in 0.5 dB steps, and is
controlled with a serial periphery interface (SPI^TM).
The TQC9312 features variable gain from 9 dB to 40dB
at 3.5 GHz, +44.5 dBm output IP3, and +27.8 dBm
P1dB. The module operates from a single +5V supply
and is available in a compact 28-pin 6x6 mm leadless
SMT package.
The TQC9312 is pin compatible with the TQM879008
(1.5-2.7GHz, 0.5W P1dB) and TQM879006A (1.4-
2.7GHz, 0.25W P1dB). This allows one to size the right
type of device for specific system level requirements as
well as making the DVGA family ideal for applications
where a common PCB layout is used for different
frequency bands.
Functional Block Diagram
LE 1
DATA 2
CLK 3
NC 4
GND 5
RFIN 6
GND 7
S
P _DSA
I
AMP2
Matching
AMP3
AMP1
DC Biasing
Matching
DC Biasing
21 GND
20 GND
19 GND
18 GND
17 GND
16 RFOUT
15 GND
Backside Pad
GND
Pin Configuration
Pin No.
1
2
3
4, 22
6
8
14
16
28
5, 7, 9-13, 15,17-21, 22-27
Backside Pad
Label
LE
DATA
CLK
NC
RFIN
VCC_AMP1 / AMP2
VCC_AMP3
RFOUT
VCC_SPI
GND
GND
Ordering Information
Part No.
Description
TQC9312
3.3-3.8 GHz DVGA
TQC9312-PCB
Fully Assembled Evaluation Board
Includes USB control board
Standard T/R size = 2500 pieces on a 13” reel.
© 2014 TriQuint
Datasheet: Rev C 12-04-1 - 1 of 9 -
Disclaimer: Subject to change without notice
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